When Hila Klein posted that her husband Ethan had been having an affair for more than six months, she left one major blank. She never said who the other person was. That blank did not stay empty for long. Within hours, one name started dominating timelines, comment sections, and group chats across the H3 community.
She is the 27-year-old animator who joined the H3 Podcast as an intern last year, better known online as Undead Mummy. Right now she sits at the center of the biggest scandal the show has ever faced, even though neither Hila nor Ethan has publicly confirmed her involvement. Here is everything that is known so far, and why so many people have locked onto her name.
Her background
Tamara Joseph was born on October 13, 1999. She is British, Jewish, and holds a Bachelor of Science in Neuroscience from The Ohio State University. While she was still a student, she was already making experimental short films under the name Undead Mummy. In 2021, Ohio State’s student newspaper The Lantern profiled her work, describing how she turns random phrases into strange, mixed-media pieces that blend stop-motion, 3D animation, puppetry, and live action.
She is largely self-taught. Her style is dark, abstract, and often unsettling. Before she ever appeared on H3, she had already built a small but dedicated following for that exact brand of weird.
How she ended up at H3
In 2023 she released two claymation videos called “Dark Nathaniel Klansman.” They featured exaggerated, nightmarish versions of Ethan Klein and Oliver Tree and quickly became a cult favorite among H3 fans. According to comments she later made on the podcast, she met Oliver Tree while visiting family in London. She asked if he had seen the videos. Her mother then asked Tree to tell Ethan to follow her on Instagram. The next day, he did.
That connection eventually led to a job. In May 2025 she joined the H3 Podcast as an intern. She was first introduced to the audience on H3 Show #151 on May 23, 2025. From that point on she worked behind the scenes as the show’s animator, occasionally appearing on camera and running her own streams on the side.
The timeline that matters
Hila said the affair lasted more than six months. That places the start somewhere around April 2026 or earlier. Tamara had already been on staff for nearly a year by then. The overlap is complete.
After Hila’s Instagram post on October 23, several things happened in quick succession:
- Tamara was absent from the most recent episode of the podcast.
- Multiple longtime crew members, including AB, Lena, Dan, and Harley, unfollowed her on Instagram.
- She did not share or interact with Hila’s statement the way the rest of the crew did.
- She has remained completely silent since the story broke.
Those are the concrete observations that turned a general “who was it?” conversation into a very specific one.
Why the internet zeroed in on her
People did not invent the connection out of thin air. The combination of factors is hard to ignore:
She is the only relatively new, significantly younger woman on the current staff.
She was present for the entire period Hila described.
The sudden social media distancing by multiple crew members is not normal coworker behavior.
Her complete silence stands out against the rest of the team’s public support for Hila.
Add in older clips that some fans now view differently, and the working theory writes itself. That does not make it proven. It does make it the strongest circumstantial case currently available.
What is still missing
There is still no direct public evidence. No messages. No photos. No video. No admission from Ethan, Tamara, or Hila. The crew’s statement cutting ties with Ethan also avoided naming anyone. Until one of the people who actually know the truth decides to speak, everything beyond the behavioral pattern remains inference.
Where things stand
Tamara Joseph is a real person with a documented creative career that existed long before she ever walked into the H3 studio. She made strange, memorable animation, got noticed by Oliver Tree, got hired, and is now the main subject of a very public rumor that has taken over the conversation.
The links are real and reasonable. The confirmed proof is not. Right now the story sits in that uncomfortable middle space where a lot of people have already made up their minds, but the people who know the full truth have chosen not to fill in the blank.
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